In order to delete or alter a reservation, you must be logged in as the
same person that made the reservation. Contact one of the meeting room
administrators or the person who initially made the reservation to
have it deleted or changed.
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The short answer is: The first person to click on
the Submit button wins.
Behind the scenes, the system is using a proper multi-user, multi-threaded
relational database than can handle many thousands of simultaneous users.
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The Meeting Room Booking System
is open source software that is distributed under the Gnu Public License(GPL).
This means that software is free to use, distribute, and modify.

The system is written mostly in PHP,
which is an open source programming language that can be embedded in web
pages similar in concept to Microsoft active server pages. PHP is especially
good at accessing databases.

The database used for the system is either
MySQL
or PostgreSQL.
MySQL is a very fast, multi-threaded, multi-user and robust
SQL (Structured Query Language) database server that is also GPL.
PostgreSQL is a full-featured multi-user open source Object Relational SQL
database server.

The system will run on multiple platforms, including the PC architecture
using the Linux operating system.
Linux, is a free, open source, unix-like operating system.

The web server being used is yet another piece of free, open source
software. The Apache web server is
the world's most popular web server.

The bottom line is:Every piece of this system, from the operating system to the application,
is completely free - source code and all.